Mario Waser, Katharina Gratzer, Richard Herchl, Norbert Müller,
"Design, synthesis, and application of tartaric acid derived N-spiro quaternary ammonium salts as chiral phase-transfer catalysts"
, in Organic and Biomolecular Chemistry, Seite(n) 251, 1-2012, ISSN: 1477-0539
Original Titel:
Design, synthesis, and application of tartaric acid derived N-spiro quaternary ammonium salts as chiral phase-transfer catalysts